That is absoulely correct, you really don’t know.

 

That is absolutely correct, you really don’t know.

 

Mine needed to be bleed. Air in the system. Works fine now.

 

I wanted to check in here again, got my C8 back since Wednesday.
The problem with the silent Corvette was a defective amplifier. This has also disturbed the CAN bus.
The mass air flow sensor was also replaced, I hope that now no new problems arise.
What finally led to the engine control lamp, could no longer be determined.

Statement from the dealer: Defects on the amplifier and mass airflow sensor occur more frequently and are under observation by GM.
My C8 is MY2022.

 

Thnx for the update...I hope it all goes well....my status code just flipped to 3400 and the car is going into production.....I ordered 2022 COUPE z51-2LT...I sent in the $2,000 deposit to Macmulkin NH exactly 1 year to the day...and so just to recap...here are the major mech issues I've seen on this forum.... If I've missed any please add to this list and lets keep the items brief (no narrattives).....I'm going to make sure Macmulkin Puts the car up on a lift for me to inspect before I take possession;

Leaking Transmission housings-transmissions not shifting correctly
Broken push rods / faulty lifters
Battery Drain due to faulty programming
Dimples / blemishes in finish along the front bumper and side doors
Audio system / Display issues on the touch tone screen
Fit & Finish issues with the interior carpet near the front dashboard
Poor quality stitching and alignment of seams associated with dash board and seat fabric.
Rear engine hatch misalignment
Steering wheel not aligned (horiz) when front wheels are straight
Front Lift not functioning as designed
Mass air flow sensor not working properly

That's all I can think of at the moment...feel free to add to the list going forward

 

Yes, but I was completely spoiled by my last car. It was a 2018 R8V10+. There wasn't one single microscopic flaw anywhere. I flashed it with VF Lambo tune and it was the ultimate car. Unfortunately, I was forced to downgrade as a result of Pres. Brandon. So now I have 2 Vettes an 07 and a 22, they both have those "body bumps"
I will probably never spend 210k on a car again but at the end of the day after the math I got all my money back on that Audi, it was the only new car that didn't cost me. If business ever returns to pre-socialist levels I will probably get a Z06 and call it good.

 

Not to violate your "no narratives" rule, but maybe some people here can save you some time when you make sure MacMulkin puts the car on a lift for you to inspect......
The DCT was a constant problem when I began my research on the C8 a couple of years ago, but has lessened a lot since then with people posting they have issues. We have one member here who has been driving his for a while with it leaking a bit without any issues.
I haven't read about the broken push rods but I did read about the faulty lifters. GM quickly chased that problem down in the 2020 model year to a faulty batch they received from a supplier and I haven't seen it reported since.
I don't believe the battery drain was caused by faulty programming. It was a result of program updates on the cars with people who left them sitting without a battery maintainer. I've had my 21 HTC for five months, keep it on a maintainer, and it has never failed to start.
All factory paint has blemishes in it - period - not only on these cars but on much more expensive exotics.
The audio issues are rare and touch screen issues even more rare - and they are user problems about 99% of the time.
Your two comments about the interior seem very picky to me. You are buying a mass produced car - not a handmade car - hence the price difference.
I don't recall reading about rear hatches being misaligned and I'm on this forum every day. I may have missed a post or two, but......
I did read last week on FB about a guy who took delivery and his car's front end was out of alignment. The dealer took care of it and he drove it home.
My front lift has performed flawlessly - oops. I broke the narrative rule. My apologies.
I did read a thread here a week or so ago from an owner who had a pad loose in his mass air flow sensor and it was replaced under warranty.

I can't add to your list because my car has performed flawlessly since I picked it up five months and 3000 miles ago. Good luck!

 

Fast Dawg - I hope I'm fortunate enough to get one like yours. I know every car is not perfect and I'm hoping for the best. If anyone has a problem with their C8, getting to the right dealer can make all the difference. I found this out many years ago when I wasted a year trying to get my new car problems fixed by a dealer who couldn't fix a bicycle. I finally had enough of that and took it to another dealer where every problem was corrected on the first visit. Fortunately, several years later the original dealer went out-of-business.

 

Soft close rear hatch quit, I moved the carpet to unplug and replug the actuator, I’ll hear a click like it’s awake again and will work 1 time, then fail.

Fluid on top of the canister behind the battery, looks like it leaked out from one of the two fittings.

Stone cold dead battery after sitting for 3 weeks, plugged in the charger and got the red “!” error, I’m always cautious to not leave a battery plugged in indefinitely but it looks like you have to with these.

 

I think these forums breed some paranoia into all of us because we see the posts by the people who do have issues. I know every time I drive my C8 I think about my DCT. To get my mind off of it I start using the paddles. If it’s going to break at least I’ll be able to describe exactly what I was doing when it broke!

Not every car is perfect and neither is mine. I’ve had a few electronic hiccups in my C8 in the first 3000 miles and they corrected themselves. Just yesterday an error message very quickly flashed on my instrument panel and went away just as quickly when I first started the car. I drove it anyway and I don’t even remember what the warning was this morning. The only real “precaution” I take with that car is every time I park it I plug it up to a battery maintainer.

I bought a Chevrolet Silverado 2500HD and a GMC Denali for my wife in 2020 right before the market went completely nuts. Both of them have performed flawlessly. My garages have nothing in them that isn’t made by GM right now - except for a Honda side by side - and I’m very happy with all of them.

 

As much money these cars get....gm could and should perform a paint correction on every one of them....

 

I have to admit I am a little worried about my incoming 22 C8 1lt coupe. Having owned 28 corvette’s, I have been real grateful that I have only really had 1 major pebbles. Trans went out at 79,000 miles on my 1989 model. And I beat the **** out of that car. 3.73 gears,etc. I had a few electronic gremlins on some of my C4’s, but nothing major. And my 91 ZR1 lasted to almost 200,000 miles on the original motor. Kept track of that car after I sold it. I work for Toyota in service, so I know the tech training that is involved when a new model rolls out. The new Tundra is having some wastegate issues. We have already had 3 brand new ones come back with wastegate issues. It happens. The key is finding a dealer that has good techs. Techs that care and take pride in what they do. My techs do.

 

Most display issues are problems with phone updates and a phones software. I see that all the time in the Toyota’s. Even emojis in someone’s phone can cause screen glitches. As far as battery drains, we had a couple of models with battery drain issues that were caused by the DCM module not turning off after the software was downloaded to the cars from the cloud. The DCM usually downloads the updates when the car is asleep for more than 3-4 hours. If the communication channel stays open the battery will drain.

 

Lotus has been supplying every buyer of a new Evora GT with a battery tender. That would make me nervous to say the least. Even with late model cars and lots of electronics, you should be able to not driver the car for three weeks.

 

Ouch..thanks for the update...I just got word from Macmulkin my c8 coupe is ready for pick up...took 1 full year for the allocation to come through...I'll make sure I check the rear hatch to make sure its working and no leaks...heading up from Long Island to New Hampshire to drive the car home...NAV says 5 hrs....I'm hoping it doesnt break down on the way home

 

In my 1/23/22 post, I listed four issues that I have with my C8. On 2/14/22, I experienced a 6th issue.

6. The DIC flashed the message "Service Suspension System." I don't recall whether the message cleared itself or whether I had to clear it by using the buttons on the steering wheel. This occurred only once and has not recurred over the last several hundred miles. Not sure, but I was probably in "Tour mode," and was exiting a slightly downward sloping driveway and turning right onto a street. As noted in my signature, the car has mag-ride and the front lift feature.

 

The Spring Mountain C8 Owners School has a lot of experience with maintenance and some electrical gremlins. One car I drove, after start up the Display would not accept a touch command, "OK" to enter the PDR mode. The Display is their biggest failure component. They have not had any DTC, valve spring or AMP failure in the 2+ years of working with C8's..
The biggest maintenance issue is brake rotor heat stress cracking... not surprising as when on track we brake very hard from 120+mph to 60ish.

 

GM has a hard time, shaking electrical gremlins.
Didn't at least some C7s have slotted rotors? I seem to recall that most stock car racers use AP Racing slotted rotors because they offered the best combination of surface area and crack-free heavy- duty use. Why the switch with the C8s?

 

New brake pads are EPA compliant, meaning they've no out-gassing. That eliminated to need for the slots. Truth being, no slots = more surface area for increased braking.

 

Did you mean DCT - as in transmission? That should make many of us, except of course the people who've had DCT failures, feel much better. They drive those cars hard out there!